> I know, and I love ProtonMail (for example) for that, but my use would just be forwarding and not storage or access. In my use case it would feel like overpay

> I know, and I love ProtonMail (for example) for that, but my use would just be forwarding and not storage or access. In my use case it would feel like overpaying. It sounded to me like you were _sending_ email as well from your custom domain, which is (in my opinion) the hardest and most expensive part of running a mail service. If you're only going to use it for forwarding you could just use something like Cloudflare's service as you previously mentioned.